/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (the License).  You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the license at 
 * https://glassfish.dev.java.net/public/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * Header Notice in each file and include the License file 
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
 * If applicable, add the following below the CDDL Header, 
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information: 
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 */

//NOTE: Tabs are used instead of spaces for indentation. 
//  Make sure that your editor does not replace tabs with spaces. 
//  Set the tab length using your favourite editor to your 
//  visual preference.

/*
 * Filename: TooManyTasksException.java	
 *
 * Copyright 2000-2001 by iPlanet/Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 * 
 * This software is the confidential and proprietary information
 * of iPlanet/Sun Microsystems, Inc. ("Confidential Information").
 * You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license 
 * agreement you entered into with iPlanet/Sun Microsystems.
 */
 
/**
 * <BR> <I>$Source: /cvs/glassfish/appserv-commons/src/java/com/sun/enterprise/util/collection/IntHashMap.java,v $</I>
 * @author     $Author: tcfujii $
 * @version    $Revision: 1.3 $ $Date: 2005/12/25 04:12:12 $
 */
 
package com.sun.enterprise.util.collection;

import java.util.HashMap;
import java.util.ArrayList;
import java.util.Iterator;

public class IntHashMap {
	
	int				maxBuckets = 0;
	Bucket[]		buckets;
	
	public IntHashMap() {
		this(89);
	}
	
	public IntHashMap(int maxBuckets) {
		this.maxBuckets = maxBuckets;
		buckets = new Bucket[maxBuckets];
		for (int i=0; i<maxBuckets; i++) {
			buckets[i] = new SortedArrayListBucket();
		}
	}
	
	public IntHashMap(Bucket[]	buckets) {
		this.buckets = buckets;
		this.maxBuckets = buckets.length;
	}
	
	public void put(int key, Object object) {
		int index = Math.abs(key % maxBuckets);
		buckets[index].put(key, object);
	}
	
	public Object get(int key) {
		int index = Math.abs(key % maxBuckets);
		return buckets[index].get(key);
	}
	
	public boolean containsKey(int key) {
	    return ( (null!=get(key) ? true: false));
	}
	
	public Object remove(int key) {
		int index = Math.abs(key % maxBuckets);
		return buckets[index].remove(key);
	}
	
	public void print() {
		for (int i=0; i<maxBuckets; i++) {
			System.out.println("Bucket[" + i + "]: " + buckets[i]);
		}
	}   

	public IntHashMapIterator iterator() {
		return new IntHashMapIterator();
	}

	private class IntHashMapIterator
		implements Iterator
	{
		int	bucketIndex = 0;
		Iterator iter = null;

		IntHashMapIterator() {
			iter = buckets[0].iterator();
		}

		public boolean hasNext() {
			if (iter.hasNext()) {
				return true;
			}

			while (++bucketIndex < maxBuckets) {
				iter = buckets[bucketIndex].iterator();
				if (iter.hasNext()) {
					return true;
				}
			}

			return false;
		}

		public Object next() {
			return iter.next();
		}

		public void remove() {
		}
	}
	
	public static void main(String[] args) {
		
    	int count = 20;
    	long time=0, t1=0, t2 = 0;
    	String data = "SomeData_";

		IntHashMap map = new IntHashMap();
		for (int i=0; i<count; i+= 5) {
			map.put(i, data + i);
		}
		
		for (int i=1; i<count; i+= 3) {
			map.put(i, data + i);
		}
		
		for (int i=3; i<count; i+= 4) {
			map.put(i, data + i);
		}
		
		for (int i=-23; i<count; i+= 4) {
			map.put(i, data + i);
		}
		
   		for (int j=-25; j<25; j++) {
    		System.out.println("Key: " + j + "; val: " + map.get(j));
    	}
    	t2 = System.currentTimeMillis();


		Iterator iter = map.iterator();
		while (iter.hasNext()) {
			System.out.println("Got: " + iter.next());
		}
		
	}

}
